<template>
    <h2>我是About的内容</h2>
</template>

<script>
    export default {
        name: 'About',
        /* beforeDestroy(){
            console.log('About即将被销毁');
        }, */
        mounted(){
            console.log('About组件挂载完毕', this);
        } 
    }
</script>

<style>

</style>